Company lists · Data refreshed September 2026

Top 25 SEO B2B companies worldwide

Name: SEO B2B companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 14,669 companies tracked

RevenueBase identified 14,669 company matches for SEO B2B companies worldwide as of September 2026 and tracks 68,300 professional contacts across them, including 9,994 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for SEO B2B companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026. Country and city lists for SEO B2B companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built

14,669Companies

68,300Contacts tracked

9,994Verified emails

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The 25 largest SEO B2B companies worldwide

Ranked by team size

Top 25 of 14,669 company matches for SEO B2B companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	SEO INC	Exact match	Carlsbad, CA, United StatesHQ recorded Sep 21, 2026	n/a	825 contacts →
	Exact match “Since its inception in 1997, SEO Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	KPL Tech Solution Pvt. LTD	Exact match	Middletown, DE, United StatesHQ recorded Sep 21, 2026	201-500	390 contacts →
	Exact match “Do you want to see your business on heights?” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	First Page	Exact match	Melbourne, United StatesHQ recorded Sep 21, 2026	201-500	332 contacts →
	Exact match “When it comes to Digital Marketing, it’s the First Page, or it’s nothing.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Boostability	Exact match	Lehi, UT, United StatesHQ recorded Sep 21, 2026	201-500	326 contacts →
	Exact match “At Boostability, we're more than just an SEO company; we're your strategic partner in driving online growth.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	Techwyse Internet Marketing	Exact match	Toronto, ON, CanadaHQ recorded Sep 21, 2026	51-200	233 contacts →
	Exact match “If your business isn't generating consistent leads online, the problem usually is your digital presence.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Herold	Exact match	Vienna, AustriaHQ recorded Sep 21, 2026	51-200	190 contacts →
	Exact match “Seit der Gründung in 1919 hat sich Herold laufend weiterentwickelt und ist heute Teil der group.one, die zu einer der führenden Unternehmensgruppen in Europa im Bereich Domains…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Futur Digital	Exact match	Boulogne-billancourt, FranceHQ recorded Sep 21, 2026	201-500	163 contacts →
	Exact match “Votre agence de Marketing Digital, spécialiste du référencement local depuis 2009 Chez Futur Digital, nous comprenons l'importance cruciale d'une présence digitale robuste pour…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Brandrep	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	51-200	152 contacts →
	Exact match “Local Marketing Company who specializes in helping small businesses with building and managing their online presence through Local SEO, Lead Generation, Local Directory submission…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	Liveseo	Exact match	Maringá, BrazilHQ recorded Sep 21, 2026	51-200	141 contacts →
	Exact match “Founded in 2016 in Spain, and currently operating in Brazil, liveSEO performs consistent and well-targeted work in SEO (search engine optimization), attracting companies looking…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	National Positions	Exact match	Westlake Village, CA, United StatesHQ recorded Sep 21, 2026	51-200	137 contacts →
	Exact match “National Positions, The Digital Growth Agency, is a 360-degree digital marketing firm located in Southern California.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Essentials The Agency	Exact match	Jakarta Barat, IndonesiaHQ recorded Sep 21, 2026	11-50	134 contacts →
	Exact match “At essentials the agency, we help brands take control of their digital presence and dominate their online space, not just exist in it.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Cannibals Media	Exact match	Pune, IndiaHQ recorded Sep 21, 2026	11-50	132 contacts →
	Exact match “Cannibals Media is a top-rated digital marketing agency in India.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Mainstreethost	Exact match	Amherst, NY, United StatesHQ recorded Sep 21, 2026	51-200	128 contacts →
	Exact match “Mainstreethost specializes in everything you need to have a successful online presence, including search engine optimization, paid search marketing, website design, social media…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	Semalt	Exact match	Kyiv, UkraineHQ recorded Sep 21, 2026	51-200	127 contacts →
	Exact match “Semalt is a results-driven, technology-inspired SEO company.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Activant Solutions PVT Ltd, Jaipur	Exact match	Jaipur, IndiaHQ recorded Sep 21, 2026	51-200	125 contacts →
	Exact match “With more than 15 years in business and a highly experienced and professional team of more than 100 team members; Activant Solutions Private Limited, founded in 2005 by the…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	SEOP	Exact match	Irvine, CA, United StatesHQ recorded Sep 21, 2026	51-200	121 contacts →
	Exact match “SEOP is one of the leaders in the Search Engine Optimization industry and was co-founded by SEO experts that thrive on a combination of in-depth expertise and creative, forward…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Leave Code Technologies Pvt. LTD	Exact match	Laxmi Nagar, IndiaHQ recorded Sep 21, 2026	11-50	120 contacts →
	Exact match “Leave Code offers you the best digital marketing services for your products and services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Hennessey Digital	Exact match	North Hollywood, CA, United StatesHQ recorded Sep 21, 2026	51-200	115 contacts →
	Exact match “Named to Fortune’s 50 Best Workplaces in Advertising & Marketing, Hennessey Digital is an award-winning digital marketing agency specializing in SEO for lawyers and other online…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Grizzly NEW Marketing	Exact match	Breda, NetherlandsHQ recorded Sep 21, 2026	51-200	109 contacts →
	Exact match “Grizzly New Marketing is een gespecialiseerd SEO marketingbureau in Nederland (Breda en Rotterdam), België (Antwerpen-Berchem) en de Verenigde Staten (New York).” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Bigseo	Exact match	Barcelona, SpainHQ recorded Sep 21, 2026	51-200	108 contacts →
	Exact match “En nuestra agencia SEO en Barcelona somos unos apasionados del posicionamiento web.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Think BIZ Solutions	Exact match	Noida, IndiaHQ recorded Sep 21, 2026	51-200	103 contacts →
	Exact match “We are specialists in SEO & Web Designing We are extremely skilled and extremely experienced provider of all of the Web solutions available.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Savit Interactive	Exact match	Mumbai, IndiaHQ recorded Sep 21, 2026	51-200	102 contacts →
	Exact match “Since 2004, Savit Interactive has been at the forefront of digital marketing, empowering businesses across India, the US, UK, Australia, Dubai, and more to build a strong and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Pikseo	Exact match	Bydgoszcz, PolandHQ recorded Sep 21, 2026	201-500	102 contacts →
	Exact match “Agencja interaktywna zajmująca się kompleksową promocją firm w Internecie.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	LEAP	Exact match	Berlin, GermanyHQ recorded Sep 21, 2026	51-200	101 contacts →
	Exact match “When visitors leave your website within seconds, what can your SEO agency do?” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Ranks Digital Media	Exact match	Ghaziabad, IndiaHQ recorded Sep 21, 2026	51-200	100 contacts →
	Exact match “Stop chasing algorithms.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “SEO B2B companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 14,669 SEO B2B companies worldwide

See the full list, filter by size, metro and specialty, and access 9,994 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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SEO B2B companies worldwide at a glance

As of Sep 21, 2026

14.6%Verified-email coverage

4.7Average contacts per company

1-10Median size (employees)

1.8%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

10,569

11-50

3,369

51-200

537

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for SEO B2B companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “SEO B2B companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 9,994 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

SEO B2B companies by location

53 lists · largest first

Every SEO B2B companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “SEO B2B companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many SEO B2B companies are there worldwide?

RevenueBase identified 14,669 company matches for SEO B2B companies worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

SEO INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most SEO B2B companies?

The United States leads with 3,392 companies, followed by India (1,743) and the United Kingdom (997). Every SEO B2B companies list by country and city is linked on this page.

Which city has the most SEO B2B companies?

London leads with 266 company records, followed by New Delhi (162) and New York (137).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 9,994 professional contacts with verified work emails tracked across these 14,669 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.